. >>> facebook founder mark zuckerberg will make a big announcement today that he's calling, quote, something awesome. tech insiders say he could unveil a video chat powered by skype. the other speculation is that facebook's long awaited app for apple's ipad could finally be ready info yto launch, or that unveil a smart app for smart phones. >>> preacher who predicted this year's doomsday is now in a nursing home. >> october 21, 2011, and at that time, the whole world will be destroyed. >> that's harold kcamping makin his predictions of the apocalypse. he predicted judgment day would happen may 21st. his media empire spent millions of dollars for billboards to promote his message. and he also said the end of the world would be october 21st of this year. >> stay with us. "news 4 today" continues at 5:00 a.m. >>> if you're young and cute in america, you can get away with murder. >> yes, they had a lot of circumstantial evidence, but they didn't have concrete